Remove all the blocks to make the composite number going out but keep the prime number. Click or tap the unused block to drop the composite numbers.
Mouse click Touch
City
Water
Princ
Snow
Detec
Drive
Ancie
Desig
Puzzl
Royal
Dirty
Lucky
Class
Poly
Machi
Dizzy
Elite
Bubbl
Mutto
Rescu
Bowli
Cowbo
1010
Chaot
Crime
Pile
Offic
Aqua
Celeb
Learn
Ameri
Unsta
Mineb